No.
52, November/December 2002 Special issue: Selected papers from the IALC Conference: Assessing Capabilities of Soil and Water Resources in Drylands: The Role of Information Retrieval and Dissemination Technologies |
The biased sample will give an inflated value for carbon in the A horizon because it takes a disproportionate amount of soil from the upper part of the A horizon, whereas the proportional sample is not biased and will properly represent the average value for the horizon.